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| 2.1 Matter, Energy, and Life 2.2 The Nature of Matter
Elements May Vary in Neutrons but Not Protons Subatomic Particles and Electrical Charge The Position of Electrons 2.3 The Kinetic Molecular Theory and Molecules
2.4 Molecules and Kinetic Energy 2.5 Physical Changes—Phases of Matter 2.6 Chemical Changes—Forming New Kinds of Matter
Covalent Bonds 2.7 Water: The Essence of Life
2.8 Chemical Reactions
Dehydration Synthesis Reactions Hydrolysis Reactions Phosphorylation Reactions Acid-Base Reactions 2.9 Acids, Bases, and Salts HOW SCIENCE WORKS 2.1: The Periodic Table of the Elements HOW SCIENCE WORKS 2.2: Greenhouse Gases and Their Relationship to Global Warming OUTLOOKS 2.1: Water and Life—The Most Common Compound of Living Things OUTLOOKS 2.2: Maintaining Your pH—How Buffers Work |